Question

In winter, water pipelines sometimes burst. Choose the correct option responsible for the cause.

• A. Anomalous expansion of water.
• B. Evaporation of water.
• C. Condensation of water.
• D. None of these.

Answer 1

The correct option is A Anomalous expansion of water.

When water is cooled, the density of water gradually increases till 4^o C. At 4^oC, water exhibit maximum density and minimum volume. On further cooling down, water expands and the density of water decreases from 4^oC to 0^oC. This phenomenon is termed as anomalous expansion of water.
During winter, as the temperature of the surrounding falls below 4 ºC, water in the pipe starts to expand and as a result the pipe bursts out.